But I hate OpenOffice, and I love MS Office 2k7.
Now you might think that I was some MS fanboy (I chose my nickname before I got into Linux). But I think most MS products suck compared to their Linux/FOSS counterparts. But until they release Office for *NIX (Hey they did it with IE) I will be content with running a VM for the sole reason of running Office.
Now I will admit that it did take a little getting used to the new Interface but once I did I found it better, and they added some cool features. The Equation editing is vastly improved, as is the list generator.
Also OO spell check sucks, and it lacks a grammer checker(at least in the one I use 2.1). Don't tell me its my job to check a 9 page paper, to find places were it put "The the car" (The way I write my paper tends to make this happen alot, I write a bunch of sub sections then paste them together).